On my SB junk I have to run the reverse lip covers.. it
was pay more for custom covers or these.. I could get these
much cheaper with my discount... then I just milled the top
off... I took about 1/2" off the top and there is still plenty
of material to mount breathers with the rubber seal(thats the
way I did the 416)... the ones in the pic I had a sealed system
due to a dry sump so it would create a vac.... this is what they
look like stock(this was for mock up)